The largest Java & Spring Boot interview question bank — OOP, concurrency, collections, JPA, Spring Security, design patterns, microservices, and deployment. Every question interviewers actually ask, with detailed answers.
@RestController
@RequestMapping("/api/users")
public class UserController {
@Autowired
private UserService service;
@GetMapping("/{id}")
public ResponseEntity<User> getUser(
@PathVariable Long id) {
return ResponseEntity.ok(
service.findById(id));
}
}25 modules · 89+ lessons · 100+ hours of content
Targeting product companies? This covers exactly what Amazon, Google, Flipkart, and Razorpay ask.
You know the basics but want to solidify your understanding of Spring Boot, design patterns, and concurrency.
Coming from frontend or another stack? This gives you a complete backend interview prep foundation.
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